Seat of the European Parliament in Strasbourg
The city of Strasbourg in France is the official seat of the European Parliament. The institution is legally bound by the decision of Edinburgh European Council of 11 and 12 December 1992 and Article 341 of the TFEU to meet there twelve times a year for a session, each of which usually takes about four days.
Source: Wikipedia — Seat of the European Parliament in Strasbourg (CC BY-SA 4.0)